期刊
CHEMICAL ENGINEERING JOURNAL
卷 188, 期 -, 页码 173-180出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2012.02.005
关键词
Electrochemical NADH regeneration; Glassy carbon; Platinum; Nickel; Electrode surface modification; Nano-particles
资金
- Natural Science and Engineering Research Council of Canada
- University of Engineering and Technology, Peshawar, Pakistan
A glassy carbon electrode surface was patterned with electrochemically deposited platinum and nickel nano-particles, with the aim of increasing the electrode efficiency in the process of in situ electrochemical regeneration of enzymatically active 1,4-NADH from NAD(+), in a batch electrochemical reactor. The role of Pt and Ni was to provide 'active' adsorbed hydrogen (Pt-H-ads or Ni-H-ads) for the fast protonation of electrochemically formed NAD-radical. The effect of nano-particle size, surface coverage, and the electrode potential on the percentage of 1,4-NADH recovered from NAD(+) was investigated. It was demonstrated that up to a 100% recovery of 1,4-NADH from NAD(+) was possible on the produced electrodes at relatively low electrode potentials, making them excellent candidates for regeneration of 1,4-NADH in industrial bioreactors. (c) 2012 Elsevier B.V. All rights reserved.
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